Home / 689,188.40-1,032,227.40-409,252.40

Finding the Fourth Proportional to 689,188.40, 1,032,227.40 and 409,252.40

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Solution

The fourth proportional to 689,188.40, 1,032,227.40 and 409,252.40 is: 612,955.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,188.40 : 1,032,227.40 = 409,252.40 : x
  2. Step 2: Convert to fraction form
    689,188.40/1,032,227.40 = 409,252.40/x
  3. Step 3: Cross multiply
    689,188.40x = 1,032,227.40 × 409,252.40
  4. Step 4: Simplify right side
    689,188.40x = 422,441,540,795.76
  5. Step 5: Solve for x
    x = 422,441,540,795.76/689,188.40
  6. Step 6: Final answer
    x = 612,955.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.